block: Accept node-name for blockdev-snapshot-delete-internal-sync

In order to remove the necessity to use BlockBackend names in the
external API, we want to allow node-names everywhere. This converts
blockdev-snapshot-delete-internal-sync to accept a node-name without
lifting the restriction that we're operating at a root node.

In case of an invalid device name, the command returns the GenericError
error class now instead of DeviceNotFound, because this is what
qmp_get_root_bs() returns.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
This commit is contained in:
Kevin Wolf 2016-06-23 14:20:24 +02:00
parent 07eec65272
commit 2dfb4c033f
4 changed files with 8 additions and 17 deletions

View file

@ -1306,21 +1306,17 @@ SnapshotInfo *qmp_blockdev_snapshot_delete_internal_sync(const char *device,
Error **errp)
{
BlockDriverState *bs;
BlockBackend *blk;
AioContext *aio_context;
QEMUSnapshotInfo sn;
Error *local_err = NULL;
SnapshotInfo *info = NULL;
int ret;
blk = blk_by_name(device);
if (!blk) {
error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND,
"Device '%s' not found", device);
bs = qmp_get_root_bs(device, errp);
if (!bs) {
return NULL;
}
aio_context = blk_get_aio_context(blk);
aio_context = bdrv_get_aio_context(bs);
aio_context_acquire(aio_context);
if (!has_id) {
@ -1336,12 +1332,6 @@ SnapshotInfo *qmp_blockdev_snapshot_delete_internal_sync(const char *device,
goto out_aio_context;
}
if (!blk_is_available(blk)) {
error_setg(errp, "Device '%s' has no medium", device);
goto out_aio_context;
}
bs = blk_bs(blk);
if (bdrv_op_is_blocked(bs, BLOCK_OP_TYPE_INTERNAL_SNAPSHOT_DELETE, errp)) {
goto out_aio_context;
}